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Fig. 1 | BMC Medical Imaging

Fig. 1

From: Evaluation of computed tomography settings in the context of visualization and discrimination of low dose injections of a novel liquid soft tissue fiducial marker in head and neck imaging

Fig. 1

After identification of the markers created by injection of SAIB/x-SAIB in the CT images acquired from the porcine mandible segments (A), the lower level of the greyscale window was visually set such that all soft tissue surrounding the markers in the respective CT images was excluded (B). Subsequently, the Hounsfield unit value of the lower level was applied as lower threshold to segment the marker volumes by defining a spherical region of interest (ROI) containing the coherent voxels representing each marker (C)

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